Preliminary design for natm tunnel support in soil
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Preliminary design for natm tunnel support in soil

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    Preliminary design for natm tunnel support in soil Preliminary design for natm tunnel support in soil Document Transcript

    • Preliminary Design for NATM Tunnel Support in Soil J. Geotech. Engrg. 118, 558 (1992); http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) (18 pages) 1 2 Eric Leca and G. Wayne Clough, Fellow, ASCE 1 Virginia Polytech.Inst. and State Univ., Blacksburg, VA.EcoleNationale des PontsetChaussées, ENPC, 93167 Noisy ‐le‐Grand, France 2 Dean of Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061 Alertso Alert Me When Citedo Alert Me When Corrected Toolso Download Citationo Add to MyScitationo Permissionso Blog This Articleo Print-Friendlyo Research Toolkit Shareo Email Abstracto Connoteao CiteULikeo del.icio.uso BibSonomyo Tweet this Articleo Add to Facebook Abstract References (13) Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually installed later to ensure the long‐term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting. © 1992 ASCE KEYWORDS ASCE SUBJECT HEADINGS
    • Tunnels, Tunnel construction, Design, Tunnel linings, Soil‐structure interaction, Clays, ShotcreteARTICLE DATADIGITAL OBJECT IDENTIFIERhttp://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)PUBLICATION DATAISSN0733-9410 (print)PublisherASCE For access to fully linked references, you need to log in.Title:PRELIMINARY DESIGN FOR NATM TUNNEL SUPPORT IN SOILAccession Number:00621090Availability:American Society of Civil Engineers345 East 47th StreetNew York, NY 10017-2398 USAFind a library where document is availableOrder URL: http://worldcat.org/issn/07339410Abstract:A finite element is used in a parametric study of the excavation and support of a shallow tunnel using the NATM (New AustrianTunnelling Method). The results are then cast in a form so that the moments and thrusts in a proposed liner can be easily obtained.The method only addresses the initial liner system. Using the same approach, a theoretical estimate can be obtained for themaximum settlement generated at ground surface. The method described is expected to assist in trade-off analyses and provideinformation to help guide better use of the more sophisticated analyses. The study considers the problem of NATM tunnelsconstructed in undrained clays. Details of the study are described, and the results are discussed.Corporate Authors:American Society of Civil Engineers
    • 345 East 47th StreetNew York, NY 10017-2398 USAAuthors:LECA, EClough, G WPagination:p. 558-575Publication Date:1992-4Serial:Journal of Geotechnical EngineeringVolume: 118Issue Number: 4Publisher: American Society of Civil EngineersISSN: 0733-9410Features:Appendices (2) ; Figures; ReferencesIndex Terms:Clay; Excavation and tunneling; NATM (Tunneling); New Austrian Tunneling Method; Saturated soils; Structural design;Tunnel design; Tunnel lining; Tunnel supports; Tunneling; Tunnels; Undrained conditionsSubject Areas:Bridges and other structures; Geotechnology; Highways; I42: Soil MechanicsFiles:HRISLast Modified:Apr 30 1992 12:00AMMore Articles from this Serial Issue:BEARING CAPACITY OF EXPANDED BASE PILES WITH COMPACTED CONCRETE SHAFTS. DISCUSSIONBUILDING RESPONSE TO EXCAVATION-INDUCED SETTLEMENT. CLOSURE TO DISCUSSIONCONSTRUCTIOON INDUCED MOVEMENTS OF INSITU WALLS. DISCUSSIONDYNAMIC EXPERIMENTS ON TWO PILE GROUPSEFFECTIVE COHESION FOR COMPACTED CLAY
    • EMPIRICAL ESTIMATION OF DOUBLE-LAYER REPULSIVE FORCE BETWEEN TWO INCLINED CLAY PARTICLES OFFINITE LENGTHGENERALIZED STATE PARAMETERS FOR PARTLY SATURATED SOILSKETTLEMAN HILLS WASTE LANDFILL SLOPE FAILURE I: LINER-SYSTEM PROPERTIES. DISCUSSIONLA VILLITA DAM RESPONSE DURING FIVE EARTHQUAKES INCLUDING PERMANENT DEFORMATION. DISCUSSIONLESSONS LEARNED FROM COMPACTED CLAY LINING. DISCUSSIONMODELING DESICCATING BEHAVIOR OF MINE TAILINGSRELIABILITY MODEL FOR SOIL LINER: POSTCONSTRUCTION. DISCUSSIONSETTLEMENT AND MOISTURE MOVEMENT IN COLLAPSIBLE SOILS. DISCUSSIONSIMPLE PROCEDURE FOR DETERMINING CAP-PLASTICITY-MODEL PARAMETERS. DISCUSSIONSOFTENING OF FILL SLOPES DUE TO MOISTURE INFILTRATION. DISCUSSIONSOIL-SUCTION-POTENTIAL MODELSTABILIZING COMPACTED CLAY AGAINST CHEMICAL ATTACK. DISCUSSION STRENGTH CORRELATION FACTOR FOR RESIDUAL SOILS Preliminary Design for NATM Tunnel Support in Soil byEric Leca, (Virginia Polytech. Inst. and State Univ., Blacksburg, VA; EcoleNationale des PontsetChaussées, ENPC, Paris, France) and G. Wayne Clough, F.ASCE, (Dean of the Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA) Journal of Geotechnical Engineering, Vol. 118, No. 4, April 1992, pp. 558-575, (doi http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)) Purchase this Article/Access full text Permissions for ReuseDocument Journal Papertype:Abstract: Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand-mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of precast concrete segments is usually installed later to ensure the long-term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions,
    • and amounts of stress release in the ground prior to shotcreting. Preliminary Design for NATM Tunnel Support in Soil J. Geotech. Engrg. 118, 558 (1992); http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558) (18 pages) 1 2 Eric Leca and G. Wayne Clough, Fellow, ASCE 1 Virginia Polytech.Inst. and State Univ., Blacksburg, VA.EcoleNationale des PontsetChaussées, ENPC, 93167 Noisy ‐le‐Grand, France 2 Dean of Coll. of Engrg., Virginia Polytech. Inst. and State Univ., Blacksburg, VA 24061 Alertso Alert Me When Citedo Alert Me When Corrected Toolso Download Citationo Add to MyScitationo Permissionso Blog This Articleo Print-Friendlyo Research Toolkit Shareo Email Abstracto Connoteao CiteULikeo del.icio.uso BibSonomyo Tweet this Articleo Add to Facebook Abstract References (13) Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand‐mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually installed later to ensure the long‐term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting.
    • © 1992 ASCEKEYWORDSASCE SUBJECT HEADINGSTunnels, Tunnel construction, Design, Tunnel linings, Soil‐structure interaction, Clays, ShotcreteARTICLE DATADIGITAL OBJECT IDENTIFIERhttp://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)PUBLICATION DATAISSN0733-9410 (print)PublisherASCE For access to fully linked references, you need to log in. Welcome to ProQuest-CSA, your Guide to Discovery.ProQuest-CSA helps researchers worldwide find and manage relevant information in their field. If youre a member of an academic institution you may have access to CSA Illumina. Please contact your library to find out. Preliminary design for NATM tunnel support in soil. Leca, E | Clough, G W American Society of Civil Engineers. Journal of Geotechnical Engineering. Vol. 118, no. 4, pp. 558-576. 1992 Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand-mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of concrete is usually installed later to ensure the long-term stability of the tunnel wall. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting. Descriptors: Stresses | Shotcrete | Liners | Excavation | Stability | Preliminary designs | Construction | Concrete construction | Concretes | Civil engineering | Walls | Thrust | Deformation | Geotechnical engineering
    • Preliminary Design for NATM Tunnel Support in SoilbyEric Leca, (Virginia Polytech. Inst. and State Univ., Blacksburg, VA; EcoleNationale des Ponts etChaussées, ENPC, Paris, France) and G. Wayne Clough, F.ASCE, (Dean of the Coll. of Engrg., VirginiaPolytech. Inst. and State Univ., Blacksburg, VA)Journal of Geotechnical Engineering, Vol. 118, No. 4, April 1992, pp. 558-575,(doi http://dx.doi.org/10.1061/(ASCE)0733-9410(1992)118:4(558)) Purchase this Article/Access full text Permissions for ReuseDocument Journal Papertype:Abstract: Design of tunnels constructed with the new Austrian tunneling method (NATM) is considered. With this method the tunnel is generally excavated using hand-mining equipment and immediately supported with a continuous shell of shotcrete. The shotcrete acts as a preliminary support during the construction. A liner made of precast concrete segments is usually installed later to ensure the long-term stability of the tunnel wall. The construction process of NATM tunnels is analyzed using the finite element method. The softening technique, currently used for the analysis of NATM tunnels, is improved and applied to a parametric study of ovoid transportation tunnels constructed in undrained clays. Based on this study, a simplified method is provided for the preliminary design of the NATM tunnel support. The method allows the estimation of moments and thrusts acting on the liner for a range of commonly encountered conditions. Design values are shown to be primarily dependent on soil deformation properties, initial stress conditions, and amounts of stress release in the ground prior to shotcreting.ASCE Subject Headings: Clays Construction Design Linings Shotcrete Soil-structure interactions